Originally Posted by sixpac
5.0 with long tube headers with an H pipe fuel injected. I want to know if there's any real benefit to having straight pipes or will putting mufflers on help anything?
Straight pipes might garner you a few HP, but the noise will get to be irritating after a while.
I'd suggest the Dynomax Ultra mufflers.
Each will flow 2200 CFM and keep the noise down to a more bearable level.